We report the experimental measurement of Ramsey interference fringes in the single-photon excitation to a high-lying bound state of atomic argon by pairs of phase-locked, time-delayed, extreme UV high-orderharmonic pulses at 87 nm. High-visibility Ramsey fringes are observed for delays larger than 100 ps, thus demonstrating a potential resolving power >10^5 at this wavelength.
Ramsey spectroscopy of bound atomic states with extreme-ultraviolet laser harmonics / I. Liontos; S. Cavalieri; C. Corsi; R. Eramo; S. Kaziannis; A. Pirri; E. Sali; M.Bellini. - In: OPTICS LETTERS. - ISSN 0146-9592. - STAMPA. - 35:(2010), pp. 832-834. [10.1364/OL.35.000832]
Ramsey spectroscopy of bound atomic states with extreme-ultraviolet laser harmonics
CAVALIERI, STEFANO;CORSI, CHIARA;ERAMO, ROBERTO;SALI, EMILIANO;
2010
Abstract
We report the experimental measurement of Ramsey interference fringes in the single-photon excitation to a high-lying bound state of atomic argon by pairs of phase-locked, time-delayed, extreme UV high-orderharmonic pulses at 87 nm. High-visibility Ramsey fringes are observed for delays larger than 100 ps, thus demonstrating a potential resolving power >10^5 at this wavelength.
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